74017740 has 96 divisors (see below), whose sum is σ = 213373440. Its totient is φ = 19165696.

The previous prime is 74017729. The next prime is 74017763. The reversal of 74017740 is 4771047.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 74017698 and 74017707.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 443137 + ... + 443303.

It is an arithmetic number, because the mean of its divisors is an integer number (2222640).

Almost surely, 2^74017740 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74017740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106686720).

74017740 is an abundant number, since it is smaller than the sum of its proper divisors (139355700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

74017740 is a wasteful number, since it uses less digits than its factorization.

74017740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351 (or 349 counting only the distinct ones).

The product of its (nonzero) digits is 5488, while the sum is 30.

The square root of 74017740 is about 8603.3563218084. The cubic root of 74017740 is about 419.8671915691.

Adding to 74017740 its reverse (4771047), we get a palindrome (78788787).

The spelling of 74017740 in words is "seventy-four million, seventeen thousand, seven hundred forty".